KATHMANDU — Devastating flash floods have claimed at least 389 lives across Nepal, triggering massive, high-gear emergency search operations. First responders have rescued over 800 survivors, though 910 people, including 517 foreign nationals, remain unaccounted for in the disaster zone.

Authorities have sounded an urgent alert along the Bhotekoshi River after satellite imagery revealed a dangerous upstream blockage. Scientists are investigating whether melting glacial lakes triggered the catastrophic deluge.

Prime Minister Balendra Shah arrived at the nearest accessible town to oversee coordinated relief efforts.